Mine-car wheel.



Patented Nov. I9, I90I.

F. C. HOCKENSMITH.

MINE CAB WHEEL.

(Application filed May 20, 1901.)

(No Model.)-

INVENTUR- vv ITN ES 5 EEL NITED ST TES FRANKLIN C. HOGKENSMITH, OF PITTSBURG, PENNSYLVANIA.

MINE-CAR WHEEL.

SPECIFICATION formingpart of Letters Patent N 0. 687,027, dated November 19, 1901.

Application filed May 20, 1901.

To all whom it may concern.-

Be it known that I, FRANKLIN O. HOCKEN- SMITH, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain. new and useful Improvements in Mine-Car Wheels, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to mine-car wheels, and has particular reference to certain improvements upon the wheels patented to me July 4, 1893, No. 500,578, and May 19, 1896, No. 560,584.

One object of the present invention is to provide the oil-receptacle formed in the hub of the wheel with an auxiliary filling-chamber, whereby the wheel may be oiled with its oiling aperture in various positions and whereby wasting of the oil is prevented when said aperture is in lowermost position.

A further object is to provide an improved closure for the oiling-aperture,

Still a further object is'to provide improved means for confining the waste in the oil-chamher in a more restricted space than in my former patents, thereby leaving more room for the oil.

The invention consists in the novel features of construction and combination of parts hereinafter fully described and claimed, and illustrated by the accompanying drawings, wherein-- Figures 1 and 2 are vertical longitudinal sectional views, taken at right angles to each other, of my improved wheel. Fig. 3 is a side elevation ,with the hub and oil-chamber shown in section, taken on line 3 3 of Fig. 1. Fig. 4 is a similar View taken on line 44 of Fig. 2. Fig. 5 is an enlarged sectional view showing my improved oil-hole closure in operative position. Fig. 6 is a sectional detail view of one of the lubricating-openings.

Referring to the drawings, 2 indicates the wheel-tread, 3 the spokes, and 4 the hub. Interposed between the spokes and hub and surrounding the latter is the annular oilchamber 5, closed at the ends by being cast integral with the hub and spokes. Formed in the outer end 6 of this chamber is the filling-aperture 7, which opens into the auxiliay chamber 8 within and cast integral with Serial No. arose. (No model.)

chamber 5. This chamber extends radially inward from the outer wall 5 of chamber 5,

and the length thereof increases toward its inner end owing to the divergence of the end walls 8' thereof. The Wide and open end of chamber 8 extends close tohub 4and is curved in conformity therewith, as clearly shown in Fig. 3. The chamber 8 thus constitutes a pocket, into which the oil is poured and from which it passes to the main oil-chamber 5. By means thereof the oiling-opening 7 is so guarded as to prevent the oil from discharging therefrom, regardlessof the position of the wheel, and at the same time without interfering with oiling the wheel, whether the oiling-opening be in uppermost position or at one side of the wheel-axis. If in the lastnamed position, in horizontal line with the axial center of the wheel or even below such line, the inflowing oil will pass from chamber 8 into chamber 5, owing to the inclination of the then lowermost chamber end 8.

For closing aperture 7 I provide the gooseneck-stopper 9, having its shank extending through inclosed pocket 10, and provide spiral spring 11, confined therein for holding the stopper normally seated in aperture 7. Pocket 11 protects the spring and prevents dirt from accumulating thereon, and in this regard is an improvement upon the construction shown in my Patent No. 560,584. The plug end 12 of stopper 9 is preferably smaller than the fapered aperture 7 and is hollowed or recessed between its ends to form a seat for the lead covering 13, which is molded thereon. The comparatively soft lead covering conforms the plug to the shape of aperture 7 and insures a tight closing thereof. If necessary, stem 9 may be tapped with a hammer, thus forcing the plug tightly into the aperture and sealing the same.

Oil-chamber 5 is continuous around hub 4, and instead of partitioning off one end thereof for the reception of waste the latter is confined around the aXle, lubricating openings 14 only by means of pins 15, arranged in cagelike form The waste maybe readily inserted through openings 14. Thus the oil space is less restricted than heretofore and less waste is required, as the pins 15 will confine a sufficient amount to prevent the oil from feeding too rapidly. Openings 14 are preferably, though not necessarily, arranged at one end of chamber 5, and, if desired, an additional unobstructed lubricating-opening 16 may be provided.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A wheel-hub having an exterior oil-chamber, and an auxiliary chamber or pocket open ing at its inner end into the said oil-chamber and Wider at said open end than at its outer end for the purpose described, said auxiliary chamber having a filling-opening.

2. AWheel-hub having an exterior oil-chamber, and an auxiliary chamber or pocket within said oil-chamber, the inner end of the auxiliary chamber being open and in close proximity to the hub, the open inner end of the auxiliary chamber being wider than its outer end for the purpose specified, the auxiliary chamber having a filling-opening.

3. A Wheel-l1 ub having an oil-chamber continuous therearound, and an auxiliary chamber Within said continuous chamber and projecting inward from the outer wall thereof with its inner end in close proximity to the inner wall of said chamber, the inner end of the auxiliary chamber being open and the end walls 8' thereof having outward convergence, substantially as shown and described.

4:. A wheel-hub having an exterior oil-chamber formed with lubricating-apertures 14, and separated pins Within the chamber in close proximity to and separately inclosing each of apertures 14-, said pins extending from the inner to the outer wall of the chamber and forming aperture-inclosing cages, substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

FRANKLIN O. HOOKENSMITH. Witnesses:

CYRUS F. BILLIMEN, THOMAS MIILES. 

